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package com.designpatternspart2.mediatorPattern;

/**
 *
 * @author Dwayne
 */
class DollarConverter {
        
        Mediator mediator;
        public static final float DOLLAR_UNIT = 1.0f;
        public static final float EURO_UNIT = 0.7f;
        public static final float KRONA_UNIT = 8.0f;
        
     public DollarConverter (Mediator mediator) {
        this.mediator = mediator;
        mediator.registerDollarConverter(this);
    }
    private float convertEurosToDollars (float euros){
        float dollars = euros * (DOLLAR_UNIT/EURO_UNIT);
        System.out.println("Converting " + euros + " euros to " + dollars + " dollars") ;
        return dollars;
    }
    private float convertKronorToDollars(float kronor) {
        float dollars = kronor * (DOLLAR_UNIT/KRONA_UNIT);
        System.out.println("Converting " + kronor + " kronor to " + dollars + " dollars");
        return dollars;
    }
    public float convertCurrencyToDollars(float amount,String unitOfCurrency) 
    {
        if("krona".equalsIgnoreCase(unitOfCurrency))
        {
            return convertKronorToDollars(amount);
        }else
        {
            return convertEurosToDollars(amount);
        }
    }
}
